But I will say beyond certainty that the percentage of overlap with actual shooters trying to finish projects are about 5%, and if that 5%, 0.05% attempting a project with any degree of complexity in the post pipe.

alexML: We had a similar issue with the Alpha with irregular data. It was a long path and after looking at the profiling output, it was clear that the (seductively looking) result was non-data and ended up just chopping it off.

You have to remember, there's no homebrew massaging going on here; Argyll looks at the swatch values registered and the CIE determined absolutely accurate values it should read then calculates the differences.

In the case of the white swatch, it is an absolute baseline reference which is good in this case both as an indicator as to how out of whack the results are but also to keep things perfectly scaled. That is, the black and white swatches will help to anchor the chart absolutely.

alexML: C08 then diverges on your chart, which, as hard as it is to believe, gets colossally more worse from nineish to twelveish (which is roughly like suggesting that going from the Titanic to the water is worse)

irieger: Just so we are clear, that's the G row, rolling through _roughly_ a saturated C (whatever ink / paper combo in the IT8 design, and whatever that target is designed to be of course), M, Y, K, R, G, B

Also, the key point being that _with_ a shaper you should be able to spot exactly where the matrix is collapsing, which should give some hint as to what ranges of colour and / or illumination are breaking down for us.

(obviously what many folks who expose 'typical' shoot the chart to slap middle grey in the middle, when what we are really wanting is the data to all land in the most linear region of the chart, which is easiest to peg if we plop the diffuse white about 80% up the well fill zone roughly.)